[Strong female lead + strong male lead + fantasy + devoted couple + political intrigue + household intrigue + suspense + medicine and poison]
Su Xiaojiu, a medical genius from a reclusive modern family, is swept into the Great Zhou dynasty by the mysterious medical text The Heavenly Doctor's Tribulation, only to be hunted down.
While fleeing, she is kidnapped and forced to impersonate Lin Wanfang, the third young lady of the Duke of Lin's household. She is also made to take the place of the bride betrothed to Ouyang Zhi, the second young master of Prince Ping's household, who is poisoned, lame, and short-lived.
Su Xiaojiu goes along with it, not only unraveling the mystery surrounding herself but also saving Ouyang Zhi.
From then on, Ouyang Zhi becomes her loyal guard, always by her side.
Two people with their lives hanging by a thread begin a happy life together: he kills, she hands him the knife; she kills, he applauds.
